Adaptec ASR-5085 Information Sheet page 4

increase the timeout in SYSFS, assuming /dev/sda, /dev/sdb,
and /dev/sdc are the device LUNs on the Ubuntu Linux host:
echo ``90``> /sys/block/sda/device/timeout
echo ``90``> /sys/block /sdb/device/timeout
echo ``90``> /sys/block/sdc/device/timeout
2.6 Other Linux Setup Issues
Before installing the Linux operating system on a logical drive,
be sure to clear (remove) old data first. If you do not
remove old data prior to installation, the OS may not boot.
As a workaround, use the boot parameter 'aacraid.wwn=2'.
2.7 Adaptec maxCache Setup
o Adaptec maxCache SSD caching is supported on Adaptec Series Q
controllers only.
o Adaptec Series Q controllers support any maxCache-compatible
SSD on the compatibility list; see www.adaptec.com/compatibility
for a full list of compatible SSD drives.
o You can install a maximum of 8 SSDs on a controller for
maxCache caching applications.
See the user's guide for complete maxCache SSD installation and
setup instructions.
2.8 Power Management Setup
You must use a compatible combination of Adaptec Storage Manager
and controller firmware and driver software to use the power
management feature. All software components must support power
management. You can download the latest controller firmware
and drivers from the Adaptec Web site at www.adaptec.com.
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3. General Cautions
- While an array is builing or cleared, do not remove and
re-insert any drive in that array. Doing so may cause
unpredictable results for any arrays on the controller.
- Do not move drives containing an array from one controller
to another while the power is on. Doing so could cause
the loss of the array configuration or data, or both.
Instead, power off both affected controllers, move the
drives, and then restart.
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4. Known Limitations
4.1 Adaptec Series 5 Forward Compatibility
Adaptec Series 5 firmware is not forward compatible with newer
Adaptec controller models. In a server with two controllers
on the backplane--a Series 5 in Slot 3 and a Series 6 in
Slot 5--the system will detect only the Series 5. If the slots
are reversed, with the Series 6 in the lower slot, both
controllers are detected. Additionally, on a PCIe Gen3 backplane,
with the Series 6 in the lower slot and the Series 5 in the
upper slot, the Series 5 firmware may crash.
4.2 ACU Utility
o ACU for DOS is deprecated and no longer supported.
o The ACU does not allow you to create an array on a Series 6
controller without providing a logical device name; the
device name cannot be blank.
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